From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753760AbdBTPs7 (ORCPT ); Mon, 20 Feb 2017 10:48:59 -0500 Received: from bhuna.collabora.co.uk ([46.235.227.227]:45871 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752767AbdBTPs6 (ORCPT ); Mon, 20 Feb 2017 10:48:58 -0500 From: Robert Foss To: mathias.nyman@intel.com, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Julius Werner , Andrew Bresticker , Felipe Balbi , Brian Norris , Baolin Wang Cc: Robert Foss Subject: [PATCH RESEND v8] usb: xhci: plat: Enable async suspend/resume Date: Mon, 20 Feb 2017 10:48:26 -0500 Message-Id: <20170220154826.23183-1-robert.foss@collabora.com> X-Mailer: git-send-email 2.11.0.453.g787f75f05 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrew Bresticker USB host controllers can take a significant amount of time to suspend and resume, adding several hundred miliseconds to the kernel resume time. Since the XHCI controller has no outside dependencies (other than clocks, which are suspended late/resumed early), allow it to suspend and resume asynchronously. Signed-off-by: Andrew Bresticker Tested-by: Andrew Bresticker Tested-by: Robert Foss Signed-off-by: Robert Foss Reviewed-by: Baolin Wang --- Changes since v8: - Rebased on upstream/master - Added r-b of Baolin Wang drivers/usb/host/xhci-plat.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index e5834dd9bcde..8ef34fe4d5c0 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -255,6 +255,8 @@ static int xhci_plat_probe(struct platform_device *pdev) if (ret) goto dealloc_usb2_hcd; + device_enable_async_suspend(&pdev->dev); + return 0; -- 2.11.0.453.g787f75f05